The carrier board supports folding operation without complex steps, and the volume is reduced after folding. Install universal wheels at the bottom of the vehicle, supporting 360 ° rotation, smooth turning, and directional changes. The pull rod supports telescopic adjustment, allowing for flexible adaptation to usage habits and finding the appropriate push height. The tracked structure designed with a staircase scene conforms to the contour of the steps, provides stable grip, and rolls up and down the stairs without the need for manual lifting of heavy objects. Configure a turning assist handle, which forms a dual control structure with the main pull rod. When loading heavy objects or turning in narrow spaces, both hands can cooperate to control. Designed for easy handling of large and heavy items. This reliable and versatile triple truck makes your mobile tasks easier.